Shijiazhuang Hongtao Technology Co., Ltd., a professional high-tech enterprise based in Zhengding County, Shijiazhuang, Hebei, China, specializes in R&D, manufacturing and customization of polycrystalline mullite insulation fiber boards, core high-temperature insulation materials for industrial and laboratory applications.

Made of high-purity Al₂O₃ and SiO₂ raw materials via wet vacuum filtration and high-temperature calcination, these fiber boards feature exceptional high-temperature resistance, with a maximum working temperature of 1800℃ and stable performance under long-term use[2][4]. They have a bulk density of 260-400 kg/m³ and ultra-low linear shrinkage (≤0.2% at 1600℃ for 8 hours)[8].

Boasting low thermal conductivity (0.10-0.23 W/m·K at 600-1000℃), they achieve excellent energy-saving effects, reducing heat loss significantly[2][8]. With superior thermal shock resistance, chemical inertness and high mechanical strength, they are non-asbestos, easy to process and install, with precise dimensional control[8].

Widely applied in industrial kilns, petrochemical equipment, aerospace and new energy fields, they serve as furnace linings, thermal insulation layers and high-temperature pipeline insulation[3][5]. Shijiazhuang Hongtao provides customized size and thickness solutions, adhering to innovation to deliver high-quality mullite fiber boards for global partners.